CN117432465A - A kind of coal mine gangue filling combined tamping mechanism - Google Patents

Abstract

The coal mine gangue filling combined tamping mechanism of the present invention includes multiple tamping power devices, compaction components, vibration components and auxiliary compaction components; a corresponding number of tamping power devices are selected according to the size of the tamping area to ensure that the tamping area is All positions that need to be filled can be filled with gangue. The tamping power device is used to provide power for the compaction component, driving the compaction component to move in both horizontal and vertical directions. At the same time, the auxiliary compaction component controls the left and right movement of the compaction component, which can control all parts of the tamping area during filling. Compact the gangue to avoid unevenness and uneven stress in the gangue filling area. In addition, a vibration device is added to cause the compaction components to vibrate during operation, which is beneficial to improving the tightness of the gangue filling, reducing the gaps between the gangue, and ensuring the beauty and safety of the tamping area after the gangue is filled.

Description

A kind of coal mine gangue filling combined tamping mechanism

Technical field

The invention belongs to the field of coal mine gangue filling, and particularly relates to a coal mine gangue filling combined tamping mechanism.

Background technique

With the growth of people's demand for coal resources, the mining of coal resources is increasing day by day, causing more and more mines to produce a large amount of gangue accumulation after mining, and the mines after mining form large-area goafs, and the ground in the goafs produces Large-scale subsidence has brought damage to people's production and life, so it is necessary to use gangue to fill the goaf.

The traditional coal gangue filling equipment in the existing technology has a simple structure and a relatively single function. It can only simply tamp the coal gangue. Since the sizes of the coal gangue are different, there will be gaps between the coal gangue during the tamping process. As a result, the coal mine gangue is not compacted tightly enough during the process. In addition, when tamping coal gangue, only a fixed area of coal gangue can be tamped. As a result, the gangue will be squeezed out during the tamping process, resulting in the tamping area being not flat enough, making the coal gangue filling area after tamping Uneven stress may lead to potential safety hazards of later collapse.

Contents of the invention

The object of the present invention is to provide a coal gangue filling combined tamping mechanism to solve the problem that the existing coal gangue filling equipment does not fill the coal gangue tightly enough and can only tamp the coal gangue in a fixed area, resulting in insufficient tamping areas. Flatness and uneven stress may cause safety hazards.

In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve:

A combined tamping mechanism for coal mine gangue filling, which is characterized in that it includes a plurality of tamping power devices, compaction components, vibration components and auxiliary compaction components; a plurality of the tamping power devices are arranged side by side, and each tamping power device A set of compaction assemblies are provided in front of the power unit, and all compaction assemblies are oriented in the same direction.

The described tamping power device is used for:

Drive the compaction component to move in both horizontal and vertical directions.

The compaction components described are used for:

Driven by the tamping power device, it moves in both horizontal and vertical directions to compress the gangue so that the gangue can be evenly filled into the goaf.

The vibration component is used for:

The compaction component is driven to vibrate by its own vibration.

The auxiliary compaction component is used for:

Increase the filling coverage area of the compaction component.

Move the compaction assembly from side to side.

The invention also has the following characteristics:

The number of said tamping power devices is 2 to 3.

Further, the tamping power device includes an installation frame, and the installation frame includes a rectangular top plate and four side plates, and the four side plates are respectively arranged at the four corners of the top plate.

The lower surface of the top plate is connected to one end of the hydraulic telescopic rod, the other end of the hydraulic telescopic rod is connected to the top of the hydraulic pusher, the output shaft of the hydraulic pusher is connected to the fixed plate, and the compaction assembly is connected to the fixed plate through the fixed plate. Tamp the front of the power unit.

Further, the hydraulic telescopic rod is arranged at an angle, and both ends of the hydraulic telescopic rod are rotatably connected to the top plate and the hydraulic pusher respectively.

The left and right side walls of the rear part of the hydraulic pusher are rotatably connected with limit rods that can rotate circumferentially along its own central axis, and the corresponding positions on the inside of the two side plates at the rear of the tamping power device are provided with a third A sliding groove; the limiting rods can be respectively clamped into the corresponding first sliding grooves and slide along the first sliding grooves in the vertical direction.

Further, a first support seat is fixedly connected to the lower surface of the top plate of the mounting frame, a first hinge sleeve is rotatably connected inside the first support seat, and one end of the hydraulic telescopic rod is rotatably connected inside the first hinge sleeve.

The top of the hydraulic pusher is fixedly connected to a second support seat, the second support seat is rotatably connected to a second hinge sleeve, and the other end of the hydraulic telescopic rod is rotatably connected inside the second hinge sleeve.

Further, the compaction assembly includes a pushing plate connected to the fixed plate.

The left and right sides of the push plate are provided with horizontally through mounting holes opposite each other, and connecting rods are slidably installed in each mounting hole; the compacting assembly also includes a compacting plate, and one end of the connecting rod extends out corresponding to The other end of the mounting hole is fixedly connected to the compaction plate; each connecting rod is equipped with a connecting spring, and the connecting springs are located between the pushing plate and the compacting plate.

Further, the vibration component includes at least one vibrator, the vibrator is arranged on the rear wall of the compaction plate, and the opening and closing of the vibrator is controlled by a vibration switch.

Further, the auxiliary compaction assembly includes a sliding plate.

A second sliding groove is provided on the front wall of the compaction plate, and the sliding plate is mounted inside the second sliding groove and can slide in the vertical direction along the second sliding groove;

The rear wall of the push plate is fixedly connected with a connecting plate, and the top of the connecting plate is fixedly connected with a vertical bevel plate; the top of the sliding plate is fixedly connected with a horizontal lifting plate; the bevel plate It is located in the same vertical plane as the lifting plate; the hypotenuse of the bevel plate faces the lifting plate;

The bottom end of the bevel plate is lower than the bottom end of the lifting plate, and the top end of the bevel plate is higher than the top end of the lifting plate; the shortest distance between the bevel plate and the lifting plate is smaller than the distance between the push plate and the compaction plate.

Further, the auxiliary compaction assembly also includes an installation slot opened on the upper wall of the fixed plate; the push plate enters the installation slot and contacts the bottom of the installation slot, and the left and right sides of the push plate are respectively passed through compression springs and tension springs. Fixedly connected to the inner walls on the left and right sides of the installation slot; the push plate can slide horizontally in the installation slot;

A limit slot is provided on the rear side of the push plate close to the tension spring, the upper wall of the spring slot is fixedly connected to the limit spring, and the bottom end of the limit spring is fixedly connected to an "L" shaped guide rod; The side of the guide rod connected to the limit spring is perpendicular to the push plate, and the other side extends out of the right side of the hydraulic pusher;

The right front part of the hydraulic pusher is fixedly connected with a guide plate. The right side of the guide plate is a vertical plane, and the left side of the cross section of the guide plate is a hump-shaped curve; the guide plate is close to the guide rod side. The side wall is an upward inclined first inclined surface, and the side wall on the side of the guide plate away from the guide rod is a second inclined surface inclined to the left;

The shortest distance between the guide plate and the guide rod is smaller than the distance between the push plate and the compaction plate; the bottom end of the guide plate is lower than the bottom end of the guide rod, and the top end of the guide plate is higher than the top end of the guide rod.

Further, the number of the vibrators is two, which are relatively distributed on the left and right sides of the rear wall of the compaction plate, and the two vibrators are jointly connected to the vibration switch.

Compared with the existing technology, the present invention has the following technical effects:

The coal mine gangue filling and combined tamping mechanism of the present invention adopts the form of a parallel combination of multiple tamping power devices. The corresponding number of tamping power devices is selected according to the size of the tamping area to ensure that all positions in the tamping area that need to be filled can be filled. Enter gangue. The tamping power device is used to provide power for the compaction component, driving the compaction component to move in both horizontal and vertical directions. At the same time, the auxiliary compaction component controls the left and right movement of the compaction component, which can control all parts of the tamping area during filling. Carry out gangue compaction to avoid unevenness and uneven stress in the gangue filling area. In addition, a vibration device is added to cause the compaction components to vibrate during operation, which is beneficial to improving the tightness of the gangue filling, reducing the gaps between the gangue, and ensuring the beauty and safety of the tamping area after the gangue is filled. It is suitable for Large-scale use and promotion in industry.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the coal mine gangue filling combined tamping mechanism of the present invention;

Figure 2 is a schematic structural diagram of the tamping power device of the present invention;

Figure 3 is a schematic structural diagram of the tamping power device of the present invention from another angle;

Figure 4 is a schematic structural diagram of the compaction component of the present invention;

Figure 5 is a schematic diagram of the connection relationship between the compaction component, vibration component and auxiliary compaction component of the present invention;

Figure 6 is a schematic top structural view of the vibration assembly and auxiliary compaction assembly of the present invention;

Figure 7 is a schematic diagram of the connection relationship between the push plate and the guide rod of the present invention;

Figure 8 is a schematic structural diagram of the guide plate of the present invention.

The meanings of each number in the figure are:

1. Tamping power device; 2. Compaction component; 3. Vibration component; 4. Auxiliary compaction component; 5. Mounting frame; 6. Hydraulic telescopic rod; 7. Hydraulic pusher; 8. Fixed plate; 9. Push Plate; 10. Connecting rod; 11. Compaction plate; 12. Connecting spring; 13. Sliding plate; 14. Second sliding groove; 15. Connecting plate; 16. Bevel plate; 17. Lifting plate; 18. Installation slot ; 19. Compression spring; 20. Tension spring; 21. Guide rod; 22. Guide plate;

301. Vibrator; 302. Vibration switch; 501. Top plate; 502. Limit rod; 503. Side plate; 504. First sliding groove; 505. First support base; 506. First hinge sleeve; 507. Second Support base; 508, second hinge sleeve; 901, limit groove; 902, limit spring; 2201, first inclined surface; 2202, second inclined surface.

Detailed ways

It should be noted that all components in the present invention are components known in the prior art unless otherwise specified. For example, the hydraulic pusher adopts a known and commonly used hydraulic pusher.

Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent transformations based on the technical solution of this application fall within the protection scope of the present invention.

A combined tamping mechanism for coal mine gangue filling, including multiple tamping power devices 1, compaction components 2, vibration components 3 and auxiliary compaction components 4; multiple tamping power devices 1 are arranged side by side, each tamping power device Compaction components 2 are arranged in front of 1, and all compaction components 2 are oriented in the same direction.

Tamping power unit 1 is used for:

Power is provided to the compaction component 2 to move the compaction component 2 in both horizontal and vertical directions.

Compaction component 2 is used for:

The gangue is compacted under the driving of the tamping power device 1, so that the gangue is evenly filled into the tamping area.

Vibration component 3 is used for:

The compaction component 2 is driven to vibrate by its own vibration, thereby improving the filling efficiency of the compaction component 2.

Auxiliary compaction component 4 is used for:

Increase the filling coverage area of compaction component 2.

Drive the compaction component 2 to move left and right.

Multiple tamping power devices are combined in parallel, and the corresponding number of tamping power devices is selected according to the size of the tamping area to ensure that all positions in the tamping area that need to be filled can be filled with gangue. The tamping power device is used to provide power for the compaction component, driving the compaction component to move in both horizontal and vertical directions. At the same time, the auxiliary compaction component controls the left and right movement of the compaction component, which can control all parts of the tamping area during filling. Carry out gangue compaction to avoid unevenness and uneven stress in the gangue filling area. In addition, a vibration device is added to cause the compaction components to vibrate during operation, which is beneficial to improving the tightness of the gangue filling, reducing the gaps between the gangue, and ensuring the beauty and safety of the tamping area after the gangue is filled.

Specifically, the number of tamping power devices 1 is 2 to 3.

As a preferred solution, the tamping power device 1 includes an installation frame 5. The installation frame 5 is composed of a rectangular top plate 501 and four side plates 503. The four side plates 503 are respectively provided at the four corners of the top plate 501.

The lower surface of the top plate 501 is connected to one end of the hydraulic telescopic rod 6, and the other end of the hydraulic telescopic rod 6 is connected to the top of the hydraulic pusher 7. The output shaft of the hydraulic pusher 7 is connected to the fixed plate 8. The compaction component 2 is connected to the tamping system through the fixed plate 8. in front of the real power device 1.

When the compaction power device 1 is working, the hydraulic pusher 7 is driven to move in the vertical direction through the expansion and contraction of the hydraulic telescopic rod 6, and then the compaction assembly 2 is driven to move in the vertical direction.

The output shaft of the hydraulic pusher 7 pushes the fixed plate 8 to move in the horizontal direction, which in turn drives the compaction assembly 2 to move in the horizontal direction. By cooperating with the hydraulic telescopic rod 6 and the hydraulic pusher 7, the compaction assembly 2 can cover all compaction areas. real area.

Further preferably, the hydraulic telescopic rod 6 is arranged at an angle, and both ends of the hydraulic telescopic rod 6 are rotatably connected to the top plate 501 and the hydraulic pusher 7 respectively.

The left and right side walls of the rear part of the hydraulic pusher 7 are rotatably connected with limit rods 503 that can rotate in the circumferential direction of the central axis of the hydraulic pusher 7. The two side plates 503 at the rear part of the tamping power device 1 are provided with limit rods 503 at corresponding positions on the inside. The first sliding groove 504; the limiting rod 9 can be respectively inserted into the corresponding first sliding groove 504 and slide along the first sliding groove 504 in the vertical direction.

Compared with the vertical arrangement, this connection method can make the gangue tamping area larger when the equipment is running. The limit rod 503 is stuck into the first sliding groove 504 and slides in the first sliding groove 504 to limit the hydraulic pressure. The function of the pusher 7 moving in the horizontal direction can also increase the stability during work.

Further preferably, a first support seat 505 is fixedly connected to the lower surface of the top plate of the mounting frame 5, a first hinge sleeve 506 is rotatably connected inside the first support seat 505, and one end of the hydraulic telescopic rod 6 is rotatably connected inside the first hinge sleeve 506; A second support base 507 is fixedly connected to the top of the hydraulic pusher 7, and a second hinge sleeve 508 is rotatably connected to the second support base 507. The other end of the hydraulic telescopic rod 6 is rotatably connected inside the second hinge sleeve 508. This arrangement can strengthen the connection strength between both ends of the hydraulic telescopic rod 6 and corresponding components.

As a preferred solution, the compaction assembly 2 includes a pushing plate 9 connected to the fixed plate 8 .

There are horizontal through-mounting holes on both sides of the push plate 9 opposite each other, and a connecting rod 10 is slidably installed in each mounting hole; one end of the connecting rod 10 extends out of the corresponding mounting hole, and the other end is fixedly connected to the compacting plate 11; each The connecting rods 10 are equipped with connecting springs 12, and the connecting springs 12 are located between the pushing plate 9 and the compacting plate 11.

When working, the output shaft of the hydraulic pusher 7 pushes the fixed plate 8, and then the fixed plate 8 drives the pushing plate 9 to move. At this time, the connecting spring 12 is compressed, and the reaction force of the connecting spring 12 pushes the compacting plate 11, compressing it. The solid plate 11 then compacts the gangue.

As a preferred solution, the vibration assembly 3 includes at least one vibrator 301. The vibrator 301 is arranged on the rear wall of the compaction plate 11, and the vibration switch 302 is used to control the opening and closing of the vibrator 301.

When the whole device is working, turn on the vibration switch 302 to start the vibrator 301, and then turn off the vibrator 301 after the tamping is completed.

As a preferred solution, the auxiliary compaction assembly 4 includes a sliding plate 13 .

A second sliding groove 14 is provided on the front wall of the compaction plate 11 . The sliding plate 13 is clamped inside the second sliding groove 14 and can slide along the second sliding groove 14 in the vertical direction.

A connecting plate 15 is fixedly connected to the rear wall of the push plate 9, and a vertically arranged bevel plate 16 is fixedly connected to the top of the connecting plate 15; a lifting plate 17 is fixedly connected to the top of the sliding plate 13; the beveled plate 16 and the lifting plate 17 are vertically connected direction is on the same plane; the hypotenuse of the hypotenuse plate 16 faces the lifting plate 17 .

The bottom end of the bevel plate 16 is lower than the bottom end of the lifting plate 17, and the top end of the bevel plate 16 is higher than the top end of the lifting plate 17; the shortest distance between the bevel plate 16 and the lifting plate 17 is smaller than the distance between the push plate 9 and the compaction plate 11 Pitch.

When the pushing plate 9 is pushed forward, the compacting plate 11 remains motionless after resisting the gangue pile, the bevel plate 16 gradually approaches the lifting plate 17, and finally lifts the lifting plate 17 through the bevel, and the lifting plate 17 follows the bevel plate The hypotenuse of 16 gradually moves upward, driving the sliding plate 13 upward, thereby increasing the compaction area of the compaction assembly 2.

During this process, after the compaction plate 11 and the sliding plate 13 have just resisted the gangue pile, the reaction force exerted by the gangue pile on the two is small, and the sliding plate 13 can be lifted out from the second sliding groove 14 of the compaction plate 11. According to It is actually necessary to design the distance between the bevel plate 16 and the lifting plate 17 to meet the work requirements.

As a preferred solution, the auxiliary compaction assembly 4 also includes a mounting slot 18 opened on the upper wall of the fixed plate 8; the pushing plate 9 enters the mounting slot 18 and contacts the bottom of the mounting slot 18. The left and right sides of the pushing plate 9 are respectively pressed by compression springs. 19 and the tension spring 20 are fixedly connected to the inner walls of the left and right sides of the installation groove 18.

A limit slot 901 is provided on the rear side of the push plate 9 close to the tension spring 20. The upper wall of the spring slot 901 is fixedly connected to the limit spring 902, and the bottom end of the limit spring 902 is fixedly connected to an "L" shaped guide rod 21; One side of the rod 21 connected to the limit spring 902 is perpendicular to the pushing plate 9, and the other side extends out of the right side of the hydraulic pusher 7.

The right front part of the hydraulic pusher 7 is fixedly connected with a guide plate 22. The right side of the guide plate 22 is a plane flush with the other end face of the hydraulic pusher 7. The left side of the cross section of the guide plate 22 is a hump-shaped curve; the guide plate 22 The side wall on the side close to the guide rod 21 is a first inclined surface 2201 that slopes upward. The side wall of the guide plate 22 away from the guide rod 21 is a second slope 2202 that slopes toward the left.

The shortest distance between the guide plate 22 and the guide rod 21 is smaller than the distance between the push plate 9 and the compaction plate 11; the bottom end of the guide plate 22 is lower than the bottom end of the guide rod 21, and the top end of the guide plate 22 is higher than the top end of the guide rod 21.

The output shaft of the hydraulic pusher 7 pushes the fixed plate 8, and then the pushing plate 9 is pushed forward. The guide rod 21 enters the top of the guide plate 22 from the first slope 2201. At this time, the limit spring 902 is compressed, so that the guide rod 21 can move upward. .

When the guide rod 21 moves to the front of the guide plate 22, the limiting spring 902 returns, and the guide rod 21 enters the hump portion of the guide plate 22 from the second slope 2202 while falling. At this time, the output shaft of the hydraulic pusher 7 is retracted, driving the push plate 9 to retract, and the guide rod 21 moves in a circuitous manner along the hump under the action of the compression spring 19 and the tension spring 20, thereby tamping the coal mine gangue. The tamping area is further smoothed, thereby further increasing the scope of the grinding and tamping area, thereby further improving the smoothing efficiency of the tamping area.

As a preferred solution, the number of vibrators 301 is two, which are relatively distributed on the left and right sides of the rear wall of the compaction plate 11. The two vibrators 301 are jointly connected to the vibration switch 302 to improve the compaction efficiency.

Claims (10)

1. The coal mine waste filling combined tamping mechanism is characterized by comprising a plurality of tamping power devices (1), a tamping assembly (2), a vibrating assembly (3) and an auxiliary tamping assembly (4); the tamping power devices (1) are arranged in parallel, a group of compacting assemblies (2) are correspondingly arranged in front of each tamping power device (1), and all the compacting assemblies (2) face the same direction;

the tamping power device (1) is used for:

the compaction assembly (2) is driven to move in the horizontal direction and the vertical direction;

the compaction assembly (2) is used for:

the gangue is compacted by moving in the horizontal and vertical directions under the driving of the tamping power device (1), so that the gangue is uniformly filled into the goaf;

the vibration assembly (3) is used for:

the compaction assembly (2) is driven to vibrate through self vibration;

the auxiliary compaction assembly (4) is used for:

increasing the filling coverage area of the compacting assembly (2);

the compacting assembly (2) is moved left and right.

2. The coal mine waste filling combination tamping mechanism according to claim 1, wherein the number of the tamping power devices (1) is 2-3.

3. The combined tamping mechanism for filling coal mine gangue as claimed in claim 1, wherein the tamping power device (1) comprises a mounting frame (5), the mounting frame (5) comprises a rectangular top plate (501) and four side plates (503), and the four side plates (503) are respectively arranged at four corners of the top plate (501);

the hydraulic tamping device is characterized in that the lower surface of the top plate (501) is connected with one end of a hydraulic telescopic rod (6), the other end of the hydraulic telescopic rod (6) is connected with the top of a hydraulic pusher (7), an output shaft of the hydraulic pusher (7) is connected with a fixed plate (8), and the compacting assembly (2) is connected to the front of the tamping power device (1) through the fixed plate (8).

4. A coal mine waste filling combined tamping mechanism as claimed in claim 3, characterized in that the hydraulic telescopic rod (6) is obliquely arranged, and two ends of the hydraulic telescopic rod (6) are respectively and rotatably connected with the top plate (501) and the hydraulic pusher (7);

limiting rods (503) capable of rotating along the circumferential direction of a central shaft of the hydraulic pusher (7) are rotatably connected to the left and right side walls of the rear part of the hydraulic pusher, and first sliding grooves (504) are formed in corresponding positions inside two side plates (503) at the rear part of the tamping power device (1); the limiting rods (9) can be respectively clamped into the corresponding first sliding grooves (504) and slide along the first sliding grooves (504) in the vertical direction.

5. The coal mine gangue filling combined tamping mechanism according to claim 4, wherein a first supporting seat (505) is fixedly connected to the lower surface of a top plate of the mounting frame (5), a first hinge sleeve (506) is rotatably connected to the inside of the first supporting seat (505), and one end of the hydraulic telescopic rod (6) is rotatably connected to the inside of the first hinge sleeve (506);

the hydraulic pusher (7) top fixedly connected with second supporting seat (507), second supporting seat (507) rotate and be connected with second articulated cover (508), hydraulic telescoping rod (6) other end rotate and connect in second articulated cover (508) inside.

6. A mine waste filling combination tamping mechanism as claimed in claim 3, wherein the compacting assembly (2) comprises a pusher plate (9) connected to the fixed plate (8);

the left side and the right side of the pushing plate (9) are provided with mounting holes which are penetrated horizontally, and a connecting rod (10) is slidably arranged in each mounting hole; the compaction assembly (2) further comprises a compaction plate (11), one end of the connecting rod (10) extends out of the corresponding mounting hole, and the other end of the connecting rod is fixedly connected with the compaction plate (11); each connecting rod (10) is sleeved with a connecting spring (12), and the connecting springs (12) are positioned between the pushing plate (9) and the compacting plate (11).

7. The coal mine waste filling combined tamping mechanism according to claim 6, wherein the vibrating assembly (3) comprises at least one vibrator (301), the vibrator (301) is arranged on the rear wall of the compacting plate (11), and the opening and closing of the vibrator (301) are controlled through a vibrating switch (302).

8. The mine waste filling combination tamping mechanism of claim 6, wherein said auxiliary compacting assembly (4) comprises a sliding plate (13);

the front wall of the compacting plate (11) is provided with a second sliding groove (14), and the sliding plate (13) is clamped in the second sliding groove (14) and can slide along the second sliding groove (14) in the vertical direction;

the rear wall of the pushing plate (9) is fixedly connected with a connecting plate (15), and the top end of the connecting plate (15) is fixedly connected with a vertically arranged bevel plate (16); the top of the sliding plate (13) is fixedly connected with a horizontal lifting plate (17); the bevel edge plate (16) and the lifting plate (17) are positioned in the same vertical plane; the bevel edge of the bevel edge plate (16) faces the lifting plate (17);

the bottom end of the bevel plate (16) is lower than the bottom end of the lifting plate (17), and the top end of the bevel plate (16) is higher than the top end of the lifting plate (17); the shortest distance between the bevel plate (16) and the lifting plate (17) is smaller than the distance between the pushing plate (9) and the compacting plate (11).

9. The coal mine waste filling combined tamping mechanism according to claim 8, wherein the auxiliary tamping assembly (4) further comprises a mounting groove (18) formed on the upper wall of the fixing plate (8); the pushing plate (9) enters the mounting groove (18) and contacts the bottom of the mounting groove (18), and the left side and the right side of the pushing plate (9) are fixedly connected with the inner walls of the left side and the right side of the mounting groove (18) through the compression spring (19) and the extension spring (20) respectively; the pushing plate (9) can horizontally slide in the mounting groove (18);

a limit groove (901) is formed in the rear side of the pushing plate (9) close to the tension spring (20), a limit spring (902) is fixedly connected to the upper wall of the spring groove (901), and an L-shaped guide rod (21) is fixedly connected to the bottom end of the limit spring (902); one side of the guide rod (21) connected with the limit spring (902) is vertical to the pushing plate (9), and the other side extends out of the right side of the hydraulic pusher (7);

the front part of the right side of the hydraulic pusher (7) is fixedly connected with a guide plate (22), the right side of the guide plate (22) is a vertical plane, and the left side of the cross section of the guide plate (22) is a hump-shaped curve; the side wall of the guide plate (22) close to the guide rod (21) is a first inclined surface (2201) inclined upwards, and the side wall of the guide plate (22) far away from the guide rod (21) is a second inclined surface (2202) inclined leftwards;

the shortest distance between the guide plate (22) and the guide rod (21) is smaller than the distance between the pushing plate (9) and the compacting plate (11); the bottom end of the guide plate (22) is lower than the bottom end of the guide rod (21), and the top end of the guide plate (22) is higher than the top end of the guide rod (21).

10. The coal mine waste filling combined tamping mechanism according to claim 7, wherein the number of the vibrators (301) is two, the vibrators are respectively and oppositely distributed on the left side and the right side of the rear wall of the compacting plate (11), and the vibrators (301) are commonly connected with the vibrating switch (302).